Apparatus for drying yarn



5, 1931. A. H. JUNKERS 1,820,621

APPARATUS FOR DRYING YARN Fil n 1925 2 Sheets-Sheet 1 Fig.2.

Aug. 25, 1931. A. H. JUNKERS APPARATUS FOR DRYING YARN 2 Sheets-Shea! 2 Filed June 17, 1925 zs mgw Patented Aug. 25, 1931 UNITED STATES ADOLI H. JUNKEBB, OI BHEYDT, GERMANY APPARATUS FOR DRYING YARN Application filed June 17, 1985, Serial No. 87,817, and in Germany June 17, 1824.

This invention relates to improvements in apparatus for drying yarn, the essential feature being that the apparatus contains angularly disposed drums around which yarn is guided in a great number of windings in continuous movement to be driedby warm air, which is directed to the yarn by guiding casings. The object of the invention is to provide improved apparatus by which the yarn may be very quickly dried without damage thereto, and by means of which sizing and drying, then dyeing and drying again, and finally forming any desired roll, pirn or bank can be eflected in a continuous run of the yarn.

With the above and other objects in vlew, the invention consists in the construction, combination and arrangement of devices hereinafter described and claimed.

In the accompanying drawings Figure 1 is a vertical, transverse section of a drying machine with several pairs of drums, constructed according to my invention.

Figure 2 is a vertical, longitudinal sectional view of the same.

Figure 3 is a horizontal sectional view of the same.

Figures 4 and 5 are detail sections showing belts and pins for guiding the yarn on the drums of the machine shown in Figures 1 to 3. a

Figures 6 and 7 are detail sections showing as a modification belts and flanges for guiding the yarn on the drums.

Figures 8 and 9 are respectively horizontal and a vertical section showing the adjusting device for the upper long drum of the machine shown in Figures 1 to 3, the axle of said drum being shorter than in said figures, and a second long drum being provided instead of the several short drums.

Figures 10 and 11 are a cross section and alongitudinal section of a skeleton drum adapted to be used in the machine shown in Figures 1 to 3 in place of the drums there shown.

Figures 12 and 13 are a cross section and a lon itudinalv section of a skeleton drum with eating means, adapted to be used sim- 60 ilarly.

The machine shown in Figures 1 to 3 is a double machine to be attended from both longitudinal sides. One side serves for drying one or several yarns each running from a cross wound s 001 1, adapted to be axially drawn ofl', to a ank swift 2. On the other side yarns from several. pirns 3 which are adapted to be axially drawn ofi are led to several cross wound spools 4, and simultaneously said yarns are dyed or sized and dried.

The frame 5 of the machine supports a casing 9, which by a partition wall 6 is divided into compartments 7 and 8, and contains openings 11 with covers 10. At the sides of said frame 5, spool supports 12 and 13 are arranged. The first spool support 12 is provided witha cup 14 receiving the s 001 1 and jointed to a'steam pipe 15, 'for fee ing steam to the spool for the purpose of warming and wetting it. The first compartment 7 contains twodrums 16 and 17, the axles 18 and 19 of which are disposed in diiferent planes, so as to-extend somewhat crosswise or angularly with respect to each other. This angle can be adjusted according to Figures 8 and 9 the axle 19 of the upper drum 17 being held by a slide 20, which can be shifted in a guiding part 21 by a screw 22. The other end of said axle is'held in a yielding bearing, or a similar adjusting device may also be provided on said other end. The axles of said drums 16 and 17 are driven in the same direction.

By the said angular arrangement of the drums the yarn 23, Figure 4, in running around both drums 16 and 17 in a great number of helical windings, is caused to automatically separate said windings from each other, as shown in Figure 4. The yarn after being initially wound around both drums, is so guided by a pin 24 as to be caused to run to the upper drum 17 continuously on the same spot. Further, it goes to the lower drum 16, then again to the upper drum, and so on, every winding bein somewhat axially displaced against the oregoing, as shown between 25 and 26 by said angular arrangement of the drums. Thus a number of windings are stretched out which sufiices for drying the yarn when running with the predetermined velocity. At last the yarn runs off tangen- Illtially from the drums and is guided through a slot of the casing 9 to the swift 2 (Figure 1), which is driven by any known means with the same peripheral velocity as the drums, and forms the yarn to a bank.

The number and position of the windings on the drums 16 and 17 remain constant during the running of the yarn. For primarily producing said windings on each drum portion serving for supporting one yarn, an endless belt or cord 27 is laid over both drums, and the beginning 28 of the yarn is connected to said belt. Thereby the belt, travelling axially along the drums in consequence of their angular arrangement, winds the yarn up, so as to fill the drums, and thereafter the yarn is torn off from said belt and led outward. This belt may also consist of some windings of the yarn wound by hand around the drums. For confining the axial displacement of said belt on the drums, the above mentioned guiding pins 24 are provided according to Figure 5 with such a curved shape, that they on one hand hold the belt on its spot and on the other hand the neighboring yarn to the drum filling spot. Further guiding pins 29 have only such length that the belt can be shifted to their left side, when yarn is to be supplied to the drums, or to their right side when the belt is out of operation, both of which positions are shown on the belts 27 in Figure 5. 7

Figures 6 and 7 show flanges 30, 31, 32 and 33 arranged on the drums instead of the described guiding pins, for guiding the belts 27 when introduced between said flanges.

' The second compartment 8 of the machine is constructed for treating special thin yarn by containing several pairs of short drums 34, 35 and 36 instead of the one pair of long drums 16 and 17 of the first compartment. Each drum pair 34, 35 and 36 receives only a single yarn and is driven by a separate pulley 37, 37 37 which can be uncoupled from the drive by a lever gear 38, 39, 40 so that in case of a yarn rupture only the one respective drum pair need to be stopped. Bolts 43 serve to hold the axles 41 and 42 of the drums, a set screw 44 being provided on the holding part of the axle 42 of each upper drum so as to enable it to be fastened in difieren't angular arrangements with respect to the axle 41 of the corresponding lower drum. Filling belts may be applied to the drum 34, 35 and 36 as well as to the first described drums 16 and 17.

Between the spool 3 to be drawn off and the drying device a mould or vat 45 adapted to be filled with dye, siZe or the like is so arranged that the yarn runs through it over rollers. This vat may extend over the entire length of the machine, as shown in Figure 3, or separate vats may be provided for differently treating the single yarns.

On the casing 9 of the machine devices for winding cross wound spools 4 are arranged in the usual manner.

The casing serves for guiding an effective current of drying air to the freely extended yarns. For this purpose in the partition wall 6, on one end of the machine, a fan 46 is provided, and on the other end the partition wall is so short as to leave an open way 47 for the circulation of the drying air. The fan thus produces a closed current circuit, into which a heating radiator 48 is inserted. Guiding walls 49 and 50 are so arranged as to apply the flowing air to the yarn extended between the drums. After the air has become saturated with moisture it can be replaced wholly or partially by opening some of the covers 10.

The skeleton drum shown in Figures 10 and 11 consists of ribs or ledges 51 for supporting the yarn only on mince points whereas the greatest part of the yarn is free to be dried by the air and not liable to stick to the drum. An interior drum 52 is stationarily disposed in said skeleton drum for receiving steam, or electrical or other heating means.

The skeleton drum shown in Figures 12 and 13 is a heating drum immediately provided with ribs or ledges for supporting the arn.

All the drums of the machine may be constructed in the manner of one of the described skeleton drums.

The stopping of the respective drums in case of rupture of a yarn can be automatically effected by devices influenced by the tension of the running yarn, which devices may be of known construction.

In the short drum pairs 34, 35 and 36, the upper drums need not be driven, as the yarn itselfor the filling belts may effect their rotation. It is also possible to arrange these drums idleon their axles and to drive the correspondin axles 42 with a smaller or greater number of revolutions for the purpose of producing a greater or smaller friction, which produces the desired tension of the yarn.

I claim:

1. An apparatus for drying yarn, comprising in combination a pair of l otary drums adapted to receive a yarn in a lurality of spiral windings. axles in said drums arranged to cross each other in different planes, means for producing a drying air current. a casing for applying said air current to the yarn stretched between said drums, and an endless belt running over both said drums and adapted to receive and wind up the beginning of the yarn.

2. An apparatus for drying yarn, comprising in combination a pair of rotary drums adapted to receive a yarn in a plurality of spiral windings, axles in said drums arranged to cross each other in different planes, means for producing a drying air current, a casing for applying said air current to the yarn stretc ed between said drums, an endless belt running-over both said drums and ada ted to receive and wind up the beginning 0 the yarn, and vdriving; means on one of said drums, the other drum being driven by said belt.

3. An apparatus for drying yarn, comprising in combination a pair of rotary drums adapted to receive a yarn in a plurality of spiral windings, axles in said drums arranged to cross each other in different planes, means for producing a drying air current, a casing for applying said air current to the yarn stretched between said drums, a device for wetting the yarn with a liquid, and means for guiding the yarn first'to a drying part of said drum arrangement, then through said wettin device and then to another drying part 0 said drum arran ement.

ADOL H. JUNKERS. 

